| Motion | Acceleration | Newtonian Laws | friction and trigonometry | Gravity |
|---|---|---|---|---|
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v=d/t
What is the formula for Velocity?
|
a=v/t
What is the formula for acceleration?
|
law of inertia
What is Newton's First law?
|
F=mk*Fn
Formula for kinetic friction
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F=G(mm/r^2)
What is the formula for universal gravitation?
|
|
What is the difference between distance and displacement?
|
9.8 m/s^2
what is the acceleration due to gravity on earth?
|
f=ma
What is Newton's Second Law?
|
R^2=A^2+B^2-2ABcos theta
What is the law of cosines?
|
2F
given that gravitational force is proportional to mass times mass, how much greater would the force be with twice the mass?
|
|
1.5 * 10^11 m
Light from the Sun reaches the earth in 8.3 min. The speed of light is 3 * 10^8 m/s. How far is the earth from the sun?
|
can a car traveling on a highway have a negative velocity and a positive acceleration? Explain
|
Faonb=-Fbona
What is newton's third law?
|
858 km/h
an airplane pilot tries to fly directly east with a velocity of 800km/h. If a wind comes from the southwest at 80 km/h, what is the relative velocity of the airplane to the ground?
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4F
how much greater is gravitational force at half of the distance r?
|
|
11 m
A car traveling at 55 km/h encounters an obstacle and must stop. It takes the driver .75 s to react. How far has the car traveled in that time?
|
607 m/s
A jet flying at 145 m/s experiences uniform acceleration at the rate of 23.1 m/s^2 for 20 s. What is its final velocity?
|
6.9x10^3 N
a car with mass 2300 kg slows down at a rate of 3 m/s^2 when approaching a stop sign. What is the magnitude of the net force slowing it down?
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15 N
a string exerts a force of 18 N on a box at an angle of 34 degrees from the horizontal. what is the horizontal component of the force on the box?
|
g would increase
If the earth began to shrink, but the mass remained the same, what would happen to the value of g on earth's surface?
|
|
105 s
You and a friend have a trip of 50 km. You travel at 90 km/h, your friend drives at 95 km/h. how long will your friend have to wait before you arrive?
|
7x10^4 m/s
determine the final velocity of a proton that has an initial velocity of 2.35x10^5 m/s and then is accelerated uniformly in an electric field at the rate of -1.10x10^12 m/s^2 for 1.5x10^-7 s.
|
10.5 m/s^2
you place a 7.5 kg object on a spring scale. If the scale reads 78.4 N, what is the acceleration due to gravity in this location?
|
6.5 m/s ; 32 degrees
a descent vehicle landing on mars has a vertical velocity toward the surface of mars of 5.5 m/s. At the same time, it has a horizontal velocity of 3.5 m/s. what is its speed and angle of descent?
|
274 m/s^2
calculate the value for g on the Sun. mass= 1.989x10^30 kg. radius= 695500000m
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